Recovery of glycols from used glycol-containing technical fluids

Recovery of glycols from used glycol-contg. technical fluids comprises (a) adding an organic solvent to the glycol-contg. fluids to form an azeotropic mixt. with the glycols which has a lower b.pt. than the glycol itself; and (b) distilling off the azeotropic mixt.

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Bibliographische Detailangaben
Hauptverfasser:	MOHR, JUERGEN, BALZER, WOLF-DIETER
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADHESIVES APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS DYES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL OR ARTIFICIAL THREADS OR FIBRES NATURAL RESINS ORGANIC CHEMISTRY PAINTS POLISHES SPINNING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TEXTILES
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Beschreibung
Zusammenfassung:	Recovery of glycols from used glycol-contg. technical fluids comprises (a) adding an organic solvent to the glycol-contg. fluids to form an azeotropic mixt. with the glycols which has a lower b.pt. than the glycol itself; and (b) distilling off the azeotropic mixt.